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Sept. l, 1931. w. c. BLACKv COAL CUTTING MACHINE .AND -THE LIKE Fild Dec. 9, .1.926 4 sheets-sheet 1 ATToR/vs Y .Spt 1, 1 931. w. c. BLACK COAL CUTTING MACHINE' AND THE LIKE Filed Dec. 4 sheets-sheet 2 l lNV-ENTOE WILL/AM CHRISTIE `*BLACK sv I I ArroRNeY Sept, l, 1931. w. c. BLACK 1,821,372

COAL CUTTING MACHINE AD THE I'JKE v Filed Dec. 9, 192e 4 sheets-sheet 3 ATTR/vey Sept. l, 1931. w. c. BLACK 1,821,372

COAL CUTTING MACHINE AND THE LIKE Filed De. s, 192e A4 sheets-sheet' 4 ATTORNEY 

